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Old 08-10-2008, 10:44 PM   #1
C10 - C90 Bill
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3-Speed Manual Trans Info Needed

I'm trying to find out the gear ratios on my original 3-Speed Manual Trans in my '72 C-10.

I know 1st gear is 2.85 and I guess all I need to know is 2nd as, of course, 3rd will be 1.00.

Also trying to find out what kind of trans it is. I'm not sure if it is a Muncie or not.

I'm thinking of changing over to the new Muncie 4-Speed trans with 3rd having a ratio of 1.00 and an overdrive gear in place of 4th.

Any info would be appreciated.

Bill
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Old 08-10-2008, 10:46 PM   #2
Cyclone44
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Re: 3-Speed Manual Trans Info Needed

Do you have any pic's??....The muncie 3 spd. is fatter and has a drain plug on the side of the case....
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Old 08-10-2008, 10:49 PM   #3
C10 - C90 Bill
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Re: 3-Speed Manual Trans Info Needed

George,

I don't have any pictures readily available, but the drain plug is on the side (passenger side).

Bill
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Old 08-10-2008, 10:59 PM   #4
C10 - C90 Bill
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Re: 3-Speed Manual Trans Info Needed

Hey Y'all,

It looks like I just found it. The answer I'm looking for is a 1.68 2nd.

The search feature works great. I should have went there in the first place.

It also looks like I have a Saginaw Trans.

Thanks, Bill

Last edited by C10 - C90 Bill; 08-10-2008 at 11:00 PM.
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Old 08-11-2008, 04:12 PM   #5
sneakysnake
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Re: 3-Speed Manual Trans Info Needed

http://www.angelfire.com/fl4/pontiacdude428/tranny.html
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Old 08-11-2008, 09:01 PM   #6
C10 - C90 Bill
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Re: 3-Speed Manual Trans Info Needed

Appreciate the link!

Bill
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